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Pneumatic Sanders: A Cushy Way to Smooth Curves

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Pneumatic Sanders: Simple to set up
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Pneumatic Sanders: Simple to set up

It's simple to set up your new pneumatic sander You can install a pneumatic sanding drum between centers on a lathe, as shown at left, or chuck it in a drill press as shown on the opening page. Drum installation is relatively easy, following the manufacturer's instructions.

A typical pneumatic sanding drum comes with a mandrel for lathe mounting. A fitting at one end features diametric kerfs to engage the lathe's two-or four-prong spur drive center.


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For the tailstock end of the one shown (from Woodcraft Supply, 800/535-4486), the manufacturer suggests you cut off the tenon on the nylon fitting supplied for the tailstock end, and support the drum end with a rotating tail center. For surer centering of the drum, we turned a simple tailstock fixture to receive the fitting's 3/8"-diameter tenon, shown in the photo above and the Tailstock Bearing drawing. (For continuous or heavy use, using the rotating tail center would be better.)

For drill-press mounting, chuck the tenon on the drum's top fitting into the drill-press. To keep the drum running true, be sure to clamp the bottom support fixture supplied with the drum firmly to the drill-press table. (For our drum, we drilled a hole to receive the drum-end pin in a piece of scrapwood large enough to clamp at both ends, shown below.)


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Now, you're ready for some contour sanding Run the drill press or lathe at 1,200 to 1,400 rpm for sanding with a pneumatic drum. The soft surface can make the drum grabby, so hold the work firmly. Sand on the lower front quadrant of a lathe-mounted drum. And remove the lathe's tool rest for sanding; don't try to brace the workpiece against it.


 

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Comments (1)
8187753955
gujart wrote:

are you in uk

10/23/2011 05:24:40 PM Report Abuse

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